Bees are messengers from up above: 
Filled with goodness and with love.
Unlike wasps, they mean us no harm: 
They are more friendly and have charm.
                
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I like this poem. You have identified that bees are good and wasps are not. You have written it well too.

 
                     
                
Bees are really fabulous, bees are really brill: A bee, you should never ever, on purpose, kill. Yes, bees are beautiful, the busy bees! They give us honey, a wholesome ingredient of our growth.